Mold for artificial stone.



No. 858,502. PATENTED JULY 2, 1907. 0. DOUGHERTY & J. w. & A. ARMSTRONG. MOLD FOR ARTIFICIAL STONE.

APPLICATION FILED NOV. so. 1906.-

3 SHEETS-SHEET I.

PATENTED JULY 2, 1907. MSTRQNG.

0. DOUGHERTY.& J. W. & A. AR

MOLD FOR ARTIFICIAL STONE.

APPLIOATIOII FILED NOV. 30, 19o e.

3 SHEETS-SHEET 2.

llgvclgton? No. 858,502. y PATENTED JULY 2, 1907.

- 0. DOUGHERTY & J. w. &. A.IARIMSTRONG.I MOLD FOR ARTIFICIAL STONE.

APPLICATION FILED NOV. 30, 1906.

a 8HEBTS4BHEBT 3.

Witnesses:

UNiTED sTAT s-PATENT O C 'oRvILL DoUGHERTY, W.-ARnsTR o e, END ADAM ARMSTRONG, OF THREE RIVERS,

MICHIGAN.

. e Mom) Eon sn'rmrcmr. scream.

- J This invention relates to improvements in molds for artificial stone or conereteposts; The objects of this invention are, first, to provide an" I improved mold for artificial stone or concrete posts bythe aid of which posts may be very rapidly manufactured or molded. Second, to provide an improved mold ,for' artificial stone or concrete posts which may be readily removed from thepostafter the same has been permitted to set or hardenyor to partially set or;

harden. Third, to provide an improved mold for artificial stone or concrete posts by which theinetal cores or binding strips are. properly supported during the filling of the mold. a i

Further objects, and objectsrelating, to structural details, will definitely appear from the detailed "descrip tion to iollow.

Weaccomplish the objects of our invention by the devices and means described in the followingspecification.. s

The invention-is clearly defined and pointed. out

in the claims.

A structure embodying the features of du'r invention is clearly illustrated inthe accompanying drawing,

forming a part of this specification, in which,

' Figure 1 is a plan of a structure embodying the -f e'a tures of our invention, showing six of the molds arranged in the support therefor, three oi the molds being filled. Fig. 2 is a side elevation of a structureembodying' the features of-our invention.- .Fig. 3 is an enlarged cross section thereof, taken on a-line corresponding to line 3-3 of Fig. l. Fig. 4 is'an enlarged, detail side elevation of one of the molds. Fig. 5 is a cross section taken on a line corresponding to line 5'5 of Fig}. Fig. 6 is a longitudinal section taken one line corresponding to line 6-6 of 5. Fig. 7 is an em larged detail partially in section taken on a 'line corresponding to line 7'-7 of Fig. 6, 'showing one of the core or bindingv strips Bend the support therefor:

. Fig. 8 is an inside perspective of one of the end plates,

i the same being modified by the omission of the openings for the core strip supports 15. Fig. 9 is a-plan view of a rack adapted to support the core strip in position to be engaged by the placing device designed to be used when the supports 15 are omitted. Fig. 10 is an en-. larged-cross section taken on a line corresponding toline of 9, the placingdevice beingindicated Specification of IiettersPatent. Application filed November so, 1906. Serial m3. $45,797.

Patented July 2 1907.

by dotted lines; Fig.11 is a sid e elevation of the placing device, the core or binding strip being indicated by dotted lines. Fig. 12 is an end elevation of the placing device, acore strip being indicated therein by dotted lines. v In the drawing, the sectional views are taken looking in the direction of the little arrows at the ends of the section lines, and similar referencecharacters refer to similar parts throughout the several views.

Referring to the drawing, the side rails l. of the mold are preferably adapted to serve as runners for transporting the molds'and the supports therefor from place to place. These side rails are connected bycross- 'pieces 2 suitably braced to make a rigidirame. The

cross-pieces 4 by which the mold racks 5 are carried are supported on the side rails 1 by means ofthe blade springs 3. These spring supports for the rackspermit of the vibration thereof, to settle the plastic material'in th emolds when filling the same. The racks 5 arep'referably formed of bars of iron bent into suitable shape to receive the molds, as clearly appears in Fig. 3.

tom and the sidesflaring slightly outward. At the upper edge of the sides are laterally projecting flanges 7.

f The molds are preferably tapered to secure suitable taper of the post.' The end plates 8,'ar e provided withv intur'ned flanges 9 at their sides and bottom. The bottom flanges of the end plates are provided with holes 11 adapted to receive the downwardly projecting stud 113. On the side walls of the mold, towards'their upperedges,

are laterally projectingv studs 12,.which are adapted to be engaged by the slots 10 in the upper edges of the side flangesfor the end plates. These side flanges are'.

adapted, when the endplates are slipped into place, to slightly compress the side walls thereof. The end platesare preferably-. secured in position by turn-but:

tons14 secured to the bottom of the mold, as clearly'ap-- pears in Fig. '6. The end plates of the mold are preferably rectangular, so that they provide a suitable base for holding the mold in an upright position when placed upon the floor or ground. 'The end plates are preferably provided with-openings adapted to receive the supports 15 for the binding strips or cores. The outer ends 16 of these supports are threaded to. receive the thumb-nut 17. The supports 15. areprovided with hooks 19 adapted to be engaged in suitable'holes in the In the structure shown in Fig. 8, the openings for the core strip supports are omitted, it being intended that arrangement being clearly indicated in the drawing.

our inventiori.

- a trough or support; 20 having rests 21 thereon for the core strips 18 This supports the binding strips, which ble. The strips, held by the placing device, are forced same time, and the top smoothed off bya straight edge.

.tamping. .The supporting springs are preferably ar .toms adapted to embrace said body, the bottom flanges of where cores are used they shall be inserted after t he mold is filled with the concrete material, and we find in practice that this method is very satisfactory. I In Figs. 9 to 12, inclusive, we show apparatus for inserting the binding strips. This preferably consists of are preferably strips of flat rolled metal, so that they can be readily engaged by the placing tool. This placing tool preferably consists of a bar 22 having a plurality of fingers 23 thereonwith forks 24 at their ends, the forks being adapted to receive the binding strips, the

In Fig. 10, we illustrate how-the strips are picked up by aid of. the placing device. This enables the easy grasping of the strips, although they may be quite flexiinto the plastic material until they are in proper position. To properly determine the position of and locate the upper binding strips, the fingers 23 are provided with stops 25 adapted to engage the upper edges of the mold. Thi method of locating the binding strips is of advantage in that it saves time required for securing them when they are held by the supports describedi In filling the molds, we preferably arrange them in the supporting rack illustrated in Figs. 1,2 and 3. The molds are arranged alternately, as illustrated, and so that the flange of oneoverlaps the flange of the other. This permits of the shoveling or feeding of the concrete material into the molds, all of them being filled at the During this filling operation, the rack is preferably vibrated on the supporting springs 3, although this settling or shaking down may take place after they are completely filled. This vibrating movement settles the plastic material into the molds effectively, thereby avoiding the necessity of pressing the same therein or ranged so that the molds are vibrated longitudinally.

The moldsmay be quickly removed from the post by removing the end plates, which allows the, mold to spring open, thereby freeing it from the post. The mold, to secure the most satisfactory results, should be inverted before removing the end plates, the posts being preferably laid on a level surface of loose earth, as they .harden more perfectly when so supported. By this means, we secure posts which have a very smooth surface. I i 1 We have illustrated and described our improved mold in detail in the form preferred by us on account of the structural simplicity and convenience in use. We are, however, aware that it is capable of considerable variation in structural details without departing from Having thus described our invention, what we claim as new and desire to secure by Letters Patent is:

1. In a mold, the combination of a trough-like sheet metal body U-shaped in cross section having outwardly projecting flanges at the top; rectangular end plates for said body having inturned flanges at their sides and botsaid end plates havinghoies therein and the side flanges .fiVlllg vertical slots at their upper edges, said end plates being adapted to compress the side walls of said body.

when in position thereon; projecting studs on the bottom and sides of said body, adapted to engage the holes and slots in the said flanges of the said end plates; and butsss,so2

tops on said body adapted to engage the bottom flange and toms adapted to embrace said body, the bottom flanges of said end plates having holes therein having and the side flanges vertical slots at their upper edges, said end plates being adapted to compress the side walls of said body when in position thereon; and projecting studs on the bottom and sides of said body adapted to engage the holes and slots in the said flanges of the said end plates, for the purpose specified.

3. In a mold, the combination of a trough-like sheet metal body U-shaped in cross section; rectangular end plates for said body having inturned flanges at their sides and bottoms adapted to embrace said body, the bottom flanges of said end plates having holes therein and the side flanges having vertical slots at their upper, edges, said end piates being adapted to compress the side walls of said body when in position thereon; projecting studs on the bottom and sides of said body adapted to engage the holes and slots in the said flanges of the said end plates; and buttons on said body adapted to engage the bottom flnugc and said end plates for securing them in position on said body, for the purpose specified.

4. In a mold, the combination of a trough-like sheet metal body U-shaped in cross section; rectangular end plates for said body having inturned flanges at their sides andbottoms' adapted to embrace said body, the bottom flanges of said end plates having holes therein and the Side flanges having vertical slots at their upper edges, said end plates being adapted to compress the side walls of said body when in position thereon; and projecting studs on the bottom and sides of said body adapted to engage the holes and slots in the said flanges of the said end plates, for the purpose specified.

5. In a mold, the combination of a trough-like sin-ct metal body having outwardly projecting flanges at the top; end plates for said body having inturned flanges at their sfues and bottoms adapted to embrace said body, the bottom flanges of said end plates having holes therein and the side flanges having vertical slots at their upper edges.

said end plates being adapted to compress the side walls of said bodywhen in position thereon; projecting studs on the bottom and sides of said body adapted to engage the holes and sipts in the said flanges of the said end plates; and buttons on said body adapted to engage the bottom flange and sald'cnd plates for securing them in position on said body, for the purpose specified.

6. In a mold, the combination of u trough-like sheet: metal body having outwardly projecting flanges ut tho top; end plates for said body having inturned finngcs at their sides and bottoms adapted to embrace said body, the bottom flanges of said end plates having ll0l0S,lll0liill and the side flanges having vertical slots at their upper edges, said end plates being adapted to compress the side walls of said body when in position thereon; and projecting studs on the bottom and sides of said body adapted to engage the holes and slots in the said flanges of the snid end plates, for the purpose specified.

7. In a mold, the combination of a frongh-likc sheet metal body; end plates for said body having inturned flanges at their sides and bottoms adapted to embrace suid body, the bottom flanges of said end plates having holes therein and the side flanges having vertical slots at their upper edges, said end plates being adapted to compress the side walls of said body when in position thereon; projecting studs on 'the bottom and sides of said body adapted to engage the holes and slots in the said flanges of file said end plates; and buttons on said body adapted to engage the bottom flange and said end plates for securing-them in position on said body, for the purpose specified.

8. in a mold, the combination of a trough-like sheet metal body; end plates for said body having inturned flanges at their sides and bottoms adapted to cmbrncc said body, the bottom flanges of snid end plates having ho'lcs therein and the side flanges having vertical slots at their sauce upper edges, said end plates being adapted to compress o! the said end plates, for the purpose specified.

9. In a mold, the combination of a trough-like sheet metal body having outwardly-projecting flanges at the top; end plates for said bodyadapted to engage and comn press the side walls of said 'body when in position there- 10 on; core supports having engaging hooks on their inner ends and threaded outer ends arranged. through said end plates"; and thumb-nuts for adjusting said coresupports whereby the tension isapplied thereto and the'cores are held in position inthe molds, for the purpose specified.

10. In a mold, the combination of a trough-like sheet metal'body; end plates for said body adapted to engage and compress the side wallsof said body when in position thereon; core supports having core engaging hooks on their inner ends and threaded'outer ends arranged through said end plates; and thumb-nuts for adjustingsaid core supports whereby the tension is applied thereto and-the cores are held in position in the-molds, for the purpose specified. f

11. In a mold, the combination of a trough-like sheet metal body having outwardly projecting flanges at the top; and end plates for said body'adapted to engage and compress the sidewalls of said body when in position thereon, for the purpose specified.

12. In a mold, the combination of a trough-like sheet metal body; and end plates for said body adapted to engage and compress the side walls of said body when in position thereon, for the purpose specified.

13. In a mold, the combination of a trough-like. sheet metal body; end plates for said body; core supports having core engaging hooks on their inner ends and threaded outer ends arranged through said end plates; and thumbnutsfor adjusting said'core supports whereby the tension is applied thereto and the cores are'held in position in the molds, for the purpose specified.

14. The combination with a plurality of tapered trough like molds having outwardly projecting flanges at the top; a rack therefor adapted to receive said troughs when arranged inalternate relation, with the flanges for said troughs overlapping; and spring supports for said rack whereby the same may bevibrated, 'for the purpose speci fled.

15. The combination with a plurality of tapered troughlike molds havingoutwardly projecting flanges at the top; a rack therefor adapted to receive said troughs, with the flangesfor said troughs overlapping; and spring supports for said rack whereby the same may be vibrated; for the purpose specified. v

16. In a device of the class described, the combination with a mold, of a supporting rack therefor; and spring supports for said rack whereby the same may be vibrated, for the purpose specified.

In witness whereof, we have hereunto set our hands and seals in the presence of two witnesses.

Witnesses:

WM. E. BARNARD, M. W. Loan. 

